Airtac SAI40 Standard Air Cylinder SAI40X75
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 75mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ40 mm
- Stroke75 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAI40 Standard Air Cylinder SAI40X75
The AirTAC SAI40X75 is a double-acting ISO 15552 profile cylinder engineered to deliver 628 N of push force at 0.5 MPa. Its 75 mm stroke provides a compact extension distance, making it well-suited for mid-range clamping and lifting tasks where space is somewhat restricted but substantial push strength is required.
This variant features a standard carbon steel piston rod and PT tapered port threads. Because it lacks the -S magnet suffix, it does not have integrated sensor grooves for reed switches. For operations requiring end-of-stroke confirmation, the -S variant is necessary, or you can explore the SAIF type which integrates a 4M solenoid valve directly for faster cycle response.
Airtac SAI40 Standard Air Cylinder SAI40X75 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 30 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAI40 Standard Air Cylinder SAI40X75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×75 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAI40 Standard Air Cylinder SAI40X75 Is Used
Mid-Force Clamping
Secures medium-sized workpieces during machining, utilizing its 628 N push force at 0.5 MPa to hold components firmly against fixture stops.
Package Diverting
Actuates routing gates on conveyor lines, where the 75 mm stroke quickly pushes cartons onto secondary chutes without excessive travel time.
Parts Ejection
Ejects molded or stamped parts from press beds, using the hard stop capability of the 40 mm bore to clear materials efficiently.
Is the Airtac SAI40 Standard Air Cylinder SAI40X75 the Right Cylinder?
Choose the SAI40X75 when an application demands more thrust than the 32 mm bore can provide, specifically stepping up from 402 N to 628 N at 0.5 MPa. If your mechanism requires less force and a smaller footprint, dropping to the 32 mm bore is recommended. Since the stroke is under 300 mm, side-load stress on the rod bearing is minimal.
As a double-acting cylinder, this model relies on continuous air pressure to maintain its position; it will drift if pressure is lost. For applications that must hold a load mechanically during an air failure, specify the SAIL variant with an air-released lock. This standard model is dimensionally interchangeable per ISO 15552, featuring a G1/4 port, and can be paired with FA or FB flange accessories.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAI40 Standard Air Cylinder SAI40X75 FAQ
At a 0.5 MPa operating pressure, this 40 mm bore cylinder provides 628 N of push force and 528 N of pull force. If pressure is increased to 0.7 MPa, the push force reaches 879 N.
Yes, the SAI40X75 is a true ISO 15552 profile cylinder, making it dimensionally interchangeable with other ISO 15552 cylinders. You can use it as a drop-in replacement by matching the 40 mm bore, 75 mm stroke, and mounting accessories.
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